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Non-Stationary Data & Fourier Transform

  1. Aug 6, 2008 #1
    I am trying to transform some non-stationary data into the frequency domain to see if there are any under lying frequencies in the data. a sample of the data can be seen here:

    http://www.geocities.com/uebermenchens/00805HR_TN_1.PNG"
    http://www.geocities.com/uebermenchens/0148H10_TN_3.PNG"
    http://www.geocities.com/uebermenchens/1016727-AL_3.PNG"

    when i look at the data i see a "step" function. I don't know if the fourier transform is the way to go... and was wondering if there was a better transfom to use?

    Mt
     
    Last edited by a moderator: Apr 23, 2017
  2. jcsd
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